Plant-protecting composition

A composition and crop technology applied in the field of compositions containing cyprodinil, which can solve the problems of bacterial resistance, insufficient bactericidal spectrum, and high price of cyprodinil

Inactive Publication Date: 2010-06-30
SHENZHEN NOPOSION AGROCHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Cyprodinil used alone is relatively expensive, and the bactericidal spectrum is not wide enough. Long-term single use is likely to induce drug resistance in bacteria

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0024] Bioassay example 1: Indoor toxicity determination of the compound composition of the present invention against cucumber gray mold

[0025] Test object: Botrytis cinerea Pers.

[0026] This experiment uses the potted method. Sow cucumber gray mold-susceptible varieties and grow them in pots to the stage of 2 true leaves, number them for later use. On the basis of preliminary tests, 5-7 series of mass concentrations are set according to the activity of the agent. For every 4 pots, spray 10ml of the medicinal solution evenly on the leaves until all the leaves are wetted, and wait for the medicinal solution to dry naturally for later use. A treatment containing only solvents and surfactants but no active ingredients was set up as a blank control. After 24 hours of medicament treatment, a crop sprayer uniformly sprays the cucumber leaves with the conidia suspension of Cucumber Botrytis cinerea. The preparation process of the conidia suspension of Cucumber Botrytis cinerea is ...

example 2

[0061] Indoor toxicity determination of the compound composition of the invention on cucumber powdery mildew

[0062] Test object: Cucumber powdery mildew (Sphaerotheca fuliginea)

[0063] This experiment uses the potted method. Sow cucumber powdery mildew-susceptible varieties, take 2 cucumber seedlings that grow to the true leaf stage, and treat 5 pots for each treatment and number them for use. On the basis of preliminary tests, 5-7 series of mass concentrations are set according to the activity of the agent. Spray the medicinal solution evenly on the leaf surface until all the leaves are wetted, and wait for the medicinal solution to dry naturally for later use. A treatment containing only solvents and surfactants but no active ingredients was set up as a blank control. 24h after the medicine, the powdery mildew spore suspension was inoculated. The preparation method of the spore suspension is as follows: take the cucumber leaves covered with powdery mildew fungus, wash the...

Embodiment 1

[0093] Formulation Example 1: 22% cyprodinil·thiophanate methyl suspension

[0094] Cyprodinil 20%, Thiophanate methyl 2%, sodium methyl naphthalene sulfonate formaldehyde condensate 10%, sodium lignosulfonate 10%, xanthan gum 1%, silicone oil 1%, glycerol 5% , The water makes up to 100%.

[0095] This embodiment is applied to control cucumber gray mold disease. The 22% cyprodinil·thiophanate-methyl suspension was diluted and sprayed with water at the dosage of 350g·ai / ha (g·ai / ha is the effective ingredient usage per hectare), and the control effect was 7 days and 15 days after administration. They were 88.1% and 85.1% respectively. The 10% cyprodinil suspension is 400g·a.i. / ha and the 36% thiophanate-methyl suspension is 800g·a.i. / ha, using the same method. The control effects of the 10% cyprodinil suspension 7 days and 15 days after the administration were 80.1% and 75.2%, respectively; the control effects of the 36% thiophanate methyl suspension 7 days and 15 days after the ...

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Abstract

The invention relates to a plant-protecting composition. The active components of the plant-protecting composition are cyprodinil (A) and a benzimidazole compound (B), B is one of thiophanate-methyl, carbendazim, benomyl and probenazole, and the weight proportion between A and B is 50:1 to 1:90.

Description

Technical field [0001] The invention relates to a composition for plant protection, in particular to a composition containing cyprodinil. Background technique [0002] In the process of chemical control of plant diseases, the resistance of pathogens has always been a relatively prominent problem. Synergistic compound antiseptic compositions can alleviate this problem. The principle is that: the action sites of the composition are increased, and the amount of active ingredients is reduced after the synergy, thereby reducing the resistance risk and production and use cost to a certain extent, and reducing the pollution to the environment. [0003] Cyprodinil, the English common name Cyprodinil, the chemical name 4-cyclopropyl-6-methyl-N-phenylpyrimidin-2-amine, is a protective fungicide, the mechanism of action is a methionine biosynthesis inhibitor, It works after spore germination, prevents fungi from penetrating the cell wall of crops, and inhibits the growth of mycelium. It ha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N47/34A01N43/54A01N47/18A01N43/78A01N47/38A01P3/00
Inventor 张洪张承来曲哲刘胜召曹明章孔建
Owner SHENZHEN NOPOSION AGROCHEM
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